Patents by Inventor Christopher G. Oliveri

Christopher G. Oliveri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230382827
    Abstract: A process for producing a mono-alkylated benzene comprises contacting benzene with di-alkylated benzene(s) and/or tri-alkylated benzene(s) in the presence of a transalkylation catalyst composition under transalkylation conditions to convert at least part of the di-alkylated benzene(s) and tri-alkylated benzene(s) to mono-alkylated benzene. The transalkylation catalyst composition comprises a treated zeolitic material having increased mesoporous surface area compared to the precursor catalyst composition from which it is made.
    Type: Application
    Filed: September 30, 2021
    Publication date: November 30, 2023
    Inventors: Aaron W. Peters, Reuben J. Britto, William J. Knaeble, Ivy D. Johnson, Christopher G. Oliveri
  • Patent number: 11827593
    Abstract: A process for producing a monoalkylated benzene comprises contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the catalyst composition comprises a metallosilicate zeolite comprising openings defined by 14-membered rings of tetrahedrally coordinated atoms and the transalkylation conditions include a temperature in the range of 160° C. to 220° C.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: November 28, 2023
    Assignee: ExxonMobil Chemicals Patents Inc.
    Inventors: Aaron W. Peters, William J. Knaeble, Allen W. Burton, Ivy D. Johnson, Christopher G. Oliveri, Reuben Britto
  • Patent number: 11820723
    Abstract: A process for producing a monoalkylated benzene comprises the step of contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the transalkylation catalyst, composition comprises zeolite beta having an external surface in excess of 350 m2/g as determined by the t-plot method for nitrogen physisorption.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: November 21, 2023
    Assignee: ExxonMobil Chemicals Patents Inc.
    Inventors: Aaron W. Peters, William J. Knaeble, Allen W. Burton, Ivy D. Johnson, Christopher G. Oliveri, Reuben Britto
  • Publication number: 20220371972
    Abstract: A process for producing a monoalkylated benzene comprises the step of contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the transalkylation catalyst, composition comprises zeolite beta having an external surface in excess of 350 m2/g as determined by the t-plot method for nitrogen physisorption.
    Type: Application
    Filed: September 16, 2020
    Publication date: November 24, 2022
    Inventors: Aaron W. Peters, William J. Knaeble, Allen W. Burton, Ivy D. Johnson, Christopher G. Oliveri, Reuben Britto
  • Publication number: 20220356132
    Abstract: A process for producing a monoalkylated benzene comprises contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the catalyst composition comprises a metallosilicate zeolite comprising openings defined by 14-membered rings of tetrahedrally coordinated atoms and the transalkylation conditions include a temperature in the range of 160° C. to 220° C.
    Type: Application
    Filed: September 16, 2020
    Publication date: November 10, 2022
    Inventors: Aaron W. Peters, William J. Knaeble, Allen W. Burton, Ivy D. Johnson, Christopher G. Oliveri, Reuben Britto
  • Publication number: 20200385322
    Abstract: The present disclosure relates to a process for producing a mono-alkylated aromatic compound, such as, for example, ethylbenzene or cumene, in which an alkylatable aromatic compound stream, such as, for example, benzene, and an alkylation agent stream, such as, for example, poly-ethylbenzene or poly-isopropylbenzene, are contacted in the presence of a transalkylation catalyst and under at least partial liquid phase transalkylation conditions. The transalkylation catalyst comprises a zeolite having a framework structure selected from the group consisting of FAU, BEA*, MOR, MWW and mixtures thereof. The zeolite has a silica-alumina molar ratio in a range of 10 to 15. The transalkylation catalyst composition has an external surface area/volume ratio in the range of 30 cm?1 to 85 cm?1.
    Type: Application
    Filed: December 15, 2017
    Publication date: December 10, 2020
    Inventors: Brett T. Loveless, Jean W. Beeckman, Christopher G. Oliveri, Scott J. Weigel, Matthew S. Ide, Theresa A. Baumrucker
  • Patent number: 9598651
    Abstract: An integrated process for producing naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants. The integrated process includes an initial dewaxing of a feed under sour conditions, optional hydrocracking of the dewaxed feed, and a separation to form a first diesel product and a bottoms fraction. The bottoms fraction is then exposed to additional hydrocracking and dewaxing to form a second diesel product and optionally a lubricant base oil product. Alternatively, a feedstock can be hydrotreated, fractionated, dewaxed, and then hydrocracked to form a diesel fuel and a dewaxed, hydrocracked bottoms fraction that is optionally suitable for use as a lubricant base oil.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: March 21, 2017
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Krista M. Prentice, Michel Daage, Ajit B. Dandekar, Christopher G. Oliveri, Rohit Vijay, Stephen J. McCarthy, Wenyih F. Lai, Bradley R. Fingland
  • Patent number: 9415385
    Abstract: Methods are provided for liquid phase activation of dewaxing and/or hydrofinishing catalysts that include a molecular sieve or other acidic crystalline support. The methods are compatible with activating the catalysts as part of a catalyst system that also includes a hydrotreating catalyst.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: August 16, 2016
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Terry E. Helton, Benjamin S. Umansky, William J. Tracy, III, Stephen J. McCarthy, Timothy L. Hilbert, Mohan Kalyanaraman, Christopher G. Oliveri
  • Patent number: 9309472
    Abstract: Methods are provided for improving the yield of distillate products from hydroprocessing of gas oil feedstocks, such as vacuum gas oils. It has been unexpectedly found that stripping of gases or fractionation to separate out a distillate fraction during initial hydrotreatment of a feed can provide a substantial increase in distillate yield at a desired amount of feedstock conversion. The improvement in yield of distillate products can allow a desired level of conversion to be performed on a feedstock for generating lubricating base oil products while reducing or minimizing the amount of naphtha (or lower) boiling range products. Alternatively, the improvement in yield of distillate products can correspond to an improved yield during a single pass through a reaction system, so that distillate yield is increased even though a lubricant boiling range product is not generated.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: April 12, 2016
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Rohit Vijay, Ajit Bhaskar Dandekar, Michel Daage, Christopher G. Oliveri, Christine Nicole Elia, Darryl Donald Lacy, Scott J. Weigel, Bradley R. Fingland
  • Publication number: 20150218466
    Abstract: An integrated process for producing naphtha fuel, diesel fuel and/or lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants. The integrated process includes an initial dewaxing of a feed under sour conditions, optional hydrocracking of the dewaxed feed, and a separation to form a first diesel product and a bottoms fraction. The bottoms fraction is then exposed to additional hydrocracking and dewaxing to form a second diesel product and optionally a lubricant base oil product. Alternatively, a feedstock can be hydrotreated, fractionated, dewaxed, and then hydrocracked to form a diesel fuel and a dewaxed, hydrocracked bottoms fraction that is optionally suitable for use as a lubricant base oil.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 6, 2015
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Krista M. Prentice, Michel Daage, Ajit B. Dandekar, Christopher G. Oliveri, Rohit Vijay, Stephen J. McCarthy, Wenyih F. Lai, Bradley R. Fingland
  • Publication number: 20150152343
    Abstract: Methods are provided for improving the yield of distillate products from hydroprocessing of gas oil feedstocks, such as vacuum gas oils. It has been unexpectedly found that stripping of gases or fractionation to separate out a distillate fraction during initial hydrotreatment of a feed can provide a substantial increase in distillate yield at a desired amount of feedstock conversion. The improvement in yield of distillate products can allow a desired level of conversion to be performed on a feedstock for generating lubricating base oil products while reducing or minimizing the amount of naphtha (or lower) boiling range products. Alternatively, the improvement in yield of distillate products can correspond to an improved yield during a single pass through a reaction system, so that distillate yield is increased even though a lubricant boiling range product is not generated.
    Type: Application
    Filed: November 14, 2014
    Publication date: June 4, 2015
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Rohit VIJAY, Ajit Bhaskar DANDEKAR, Michel DAAGE, Christopher G. OLIVERI, Christine Nicole ELIA, Darryl Donald LACY, Scott J. WEIGEL, Bradley R. FINGLAND
  • Publication number: 20150025283
    Abstract: The invention is directed to a multimetallic catalyst and its use in a reactor system in a C9+ aromatics conversion process in order to reduce the saturation of aromatic species, reduce the production of C6+ non-aromatics byproducts, and achieve higher benzene purity. The multimetallic catalyst exhibits improved selectivity towards aromatic hydrocarbons in comparison to a traditional Pt/ZSM-5 catalyst and comprises ZSM-5, a Group 6-10 metal, and an additional metal not in Group 6-10. The C9+ aromatics conversion reactor system comprises a top bed containing the multimetallic catalyst for dealkylation of ethyl and propyl side chains, a second bed containing a catalyst comprising a hydrogenation component for transalkylation, and an optional third bed containing a catalyst without a hydrogenation component to convert non-aromatic hydrocarbons to gas products.
    Type: Application
    Filed: June 23, 2014
    Publication date: January 22, 2015
    Inventors: Jane C. Cheng, Christopher G. Oliveri
  • Patent number: 8932454
    Abstract: This invention relates to the composition, method of making and use of a hydrocracking catalyst that is comprised of a new Y zeolite which exhibits an exceptionally low small mesoporous peak around the 40 ? (angstrom) range as determined by nitrogen adsorption measurements. The hydrocracking catalysts of invention exhibit improved distillate yield and selectivity as well as improved conversions at lower temperatures than conventional hydrocracking catalysts containing Y zeolites. The hydrocracking catalysts herein are particularly useful in the hydrocracking processes as disclosed herein, particularly for conversion of heavy hydrocarbon feedstocks such as gas oils and vacuum tower bottoms and an associated maximization and/or improved selectivity of the distillate yield obtained from such hydrocracking processes.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: January 13, 2015
    Assignee: ExxonMobile Research and Engineering Co.
    Inventors: Jianxin Jason Wu, Ajit B. Dandekar, Christopher G. Oliveri
  • Patent number: 8778171
    Abstract: This invention relates to hydrocracking catalysts utilizing stabilized aggregates of small primary crystallites of zeolite Y that are clustered into larger secondary particles. At least 80% of the secondary particles may comprise at least 5 primary crystallites. The size of the primary crystallites may be at most about 0.5 micron, or at most about 0.3 micron, and the size of the secondary particles may be at least about 0.8 micron, or at least about 1.0 ?m. The silica to alumina ratio of the resulting stabilized aggregated Y zeolite may be 4:1 or more. This invention also relates to the use of such catalysts in hydrocracking processes for the conversion of heavy oils into lighter fuel products. The invention is particularly suited for the selective production of diesel range products from gas oil range feedstock materials under hydrocracking conditions.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: July 15, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Christopher G. Oliveri, Wenyih Frank Lai, Ajit B. Dandekar, Scott J. Weigel, Jason Wu, Robert E. Kay
  • Patent number: 8729330
    Abstract: Non-hydrotreated biocomponent feeds can be mixed with mineral feeds and processed under catalytic isomerization/dewaxing conditions. The catalytic isomerization/dewaxing conditions can be selected to advantageously also substantially deoxygenate the mixed feed. Diesel fuel products with improved cold flow properties can be produced.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: May 20, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Patrick L. Hanks, Timothy L. Hilbert, William J. Novak, Christopher G. Oliveri
  • Patent number: 8674160
    Abstract: Feeds containing a hydrotreated biocomponent portion, and optionally a mineral portion, can be processed under catalytic conditions for isomerization and/or dewaxing. The sulfur content of the feed for dewaxing can be selected based on the hydrogenation metal used for the catalyst. Diesel fuel products with improved cold flow properties can be produced.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: March 18, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Patrick L. Hanks, Timothy L. Hilbert, William J. Novak, Christopher G. Oliveri
  • Publication number: 20130026070
    Abstract: This invention relates to hydrocracking catalysts utilizing stabilized aggregates of small primary crystallites of zeolite Y that are clustered into larger secondary particles. At least 80% of the secondary particles may comprise at least 5 primary crystallites. The size of the primary crystallites may be at most about 0.5 micron, or at most about 0.3 micron, and the size of the secondary particles may be at least about 0.8 micron, or at least about 1.0 ?m. The silica to alumina ratio of the resulting stabilized aggregated Y zeolite may be 4:1 or more. This invention also relates to the use of such catalysts in hydrocracking processes for the conversion of heavy oils into lighter fuel products. The invention is particularly suited for the selective production of diesel range products from gas oil range feedstock materials under hydrocracking conditions.
    Type: Application
    Filed: March 6, 2012
    Publication date: January 31, 2013
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Christopher G. Oliveri, Wenyih Frank Lai, Ajit B. Dandekar, Scott J. Weigel, Jason Wu, Robert E. Kay
  • Publication number: 20110219671
    Abstract: Feeds containing a hydrotreated biocomponent portion, and optionally a mineral portion, can be processed under catalytic conditions for isomerization and/or dewaxing. The sulfur content of the feed for dewaxing can be selected based on the hydrogenation metal used for the catalyst. Diesel fuel products with improved cold flow properties can be produced.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 15, 2011
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Patrick L. Hanks, Timothy L. Hilbert, William J. Novak, Christopher G. Oliveri
  • Publication number: 20110219669
    Abstract: Non-hydrotreated biocomponent feeds can be mixed with mineral feeds and processed under catalytic isomerization/dewaxing conditions. The catalytic isomerization/dewaxing conditions can be selected to advantageously also substantially deoxygenate the mixed feed. Diesel fuel products with improved cold flow properties can be produced.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 15, 2011
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Patrick L. Hanks, Timothy L. Hilbert, William J. Novak, Christopher G. Oliveri
  • Publication number: 20100176027
    Abstract: An integrated process for producing diesel fuel from feedstocks, including diesel fuel production under sour conditions, is provided. The ability to process feedstocks under higher sulfur and/or nitrogen conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. In addition to the benefits in sour service, the process also returns to clean service activity levels more quickly.
    Type: Application
    Filed: December 15, 2009
    Publication date: July 15, 2010
    Inventors: Christopher G. Oliveri, William J. Novak, Timothy L. Hilbert